si.instructure.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`si.instructure.com`

DNSSEC	⚠️ Not signed
A	3.170.131.13^{🇺🇸 Amazon3.170.131.0/24}
		PTR	`server-3-170-131-13.cmh68.r.cloudfront.net`
A	3.170.131.41^{🇺🇸 Amazon3.170.131.0/24}
A	3.170.131.69^{🇺🇸 Amazon3.170.131.0/24}
A	3.170.131.119^{🇺🇸 Amazon3.170.131.0/24}

`instructure.com`

	DNSSEC	⚠️ Not signed
	A	151.101.2.132^{🇺🇸 Fastly151.101.0.0/22}
	A	151.101.66.132^{🇺🇸 Fastly151.101.64.0/22}
	NS	`ns-2.awsdns-00.com` ⭐
	NS	`ns-1354.awsdns-41.org`
	NS	`ns-1799.awsdns-32.co.uk`
	NS	`ns-996.awsdns-60.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt2.aspmx.l.google.com`⁽¹⁰⁾
	MX	`aspmx2.googlemail.com`⁽²⁰⁾
	MX	`aspmx3.googlemail.com`⁽²⁰⁾
	TXT	`2acd5847c66f4325be05af390213b8c7.instructure.com`
	TXT	`MS=ms20700021`
	TXT	`ZOOM_verify_Up1Opd4-S9ChtRORps16qw`
	TXT	`adobe-idp-site-verification=4287460e7429c97ad75b995bdef6b0d7ff1c9b541946abfaf...`
	TXT	`anthropic-domain-verification-2pz98m=hO4bmZQTC5gutJZcanKeagAWR`
	TXT	`anthropic-domain-verification-4mh4xs=A4vkPXqJIA4VVi9GAbxDEPohr`
	TXT	`anthropic-domain-verification-pz1pr3=sZkvFuBJeSdmEXoj4KJYYQW8Z`
	TXT	`anthropic-domain-verification-vz61c8=kfBobb4vvH2M9xtsZhFajtKHr`
	TXT	`apple-domain-verification=8oZZjgKWADRgkWui`
	TXT	`astro-domain-verification=cmbjhzn9b0c0h01pimts1v2h1`
	TXT	`atlassian-domain-verification=pS8CbCDhL3R1mMujl07LwhltWFcJtks8mrBa7l/1uocODR9...`
	TXT	`bugcrowd-verification=817deedf9414a9ea878ff255c42a9afa`
	TXT	`canva-site-verification=jRPvv0c9AZGTaJIIPIpfAQ`
	TXT	`canva-site-verification=jiASD5n0aNnvUnfIP1w4XA`
	TXT	`docker-verification=7555bc65-ce7a-4ed2-8028-4bf0274d2c5b`
	TXT	`docusign=1ca86ab9-2ddb-4d63-b719-4798811390ca`
	TXT	`drift-domain-verification=608941e9992460f0ccd58daa1decf1808863da188a929106582...`
	TXT	`fastly-domain-delegation-jpv3oeoqr3aouxwkbhpb-00480650-2025-07-31`
	TXT	`figma-domain-verification=848b9254b032bfe488e955a140a8a63cb345186c3c69b7200f7...`
	TXT	`google-site-verification=3SDlSr_fW_6bYm0BDDK4ZXs6I5yKtB4WyXL3GNozx8I`
	TXT	`google-site-verification=Som6bbrVvI5NLh3lTcpNSbp6_0GpFezQQ9xo6CrSHOQ`
	TXT	`google-site-verification=WSlNW84_Zm6mbOaM35pQyLJUt7-OtVXNjzXe9LT-eJI`
	TXT	`google-site-verification=bC89ByaBs616PDmJLrSUG5RS3fyA8agwCtXch9G0GL0`
	TXT	`hcp-domain-verification=24de36f1e2e1ad573ac320a62707e7ec8ac0cce2dccf7985914a8...`
	TXT	`jamf-site-verification=-bAufptjYdQAfzF-s7PBtQ`
	TXT	`m6bll7f2q2d2uidl6cq273dma0`
	TXT	`miro-verification=0ee36f655f5ce0499683c255714fcdbe990af0e0`
	TXT	`mongodb-site-verification=UyyatYgRcdnc3W9g8StgD1OK8wfcIouE`
	TXT	`onetrust-domain-verification=5ef48d8081ac4ab6adce9ed80c92f4e5`
	TXT	`openai-domain-verification=dv-wb5qFISTkDoktTMXLsDMVuZ0`
	TXT	`pendo-domain-verification=2l9wI_SzXdfdzA0ZCZUES4O0FS0`
	TXT	`sprout-social-715adb3f-6166-4bc5-b3d9-b1faf326db31`
	TXT	`stripe-verification=B0532755BD8D4E0C6B601C3FCDB1DF203E57A8D2CDA9A7F9F84F8BD64...`
	TXT	`v=spf1 include:_spf.google.com include:amazonses.com include:_spf.q4press.com...`
	TXT	`zapier-domain-verification-challenge=fe79b183-171c-432c-bf5d-48b3e73fd0af`
	TXT	`zoho-verification=zb08654551.zmverify.zoho.com`
	SOA	`ns-2.awsdns-00.com`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (87/100)
rank #1481 globally
rank #791 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #2,043

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DNS History

109 records (4 active, 105 former)

○A108.138.103.1072026-06-12 → 2026-08-17 · 53 obs

○ 2026-06-11 09:48:20
● 2026-06-12 19:07:40
● 2026-06-13 05:49:46
○ 2026-06-13 08:17:46
● 2026-06-13 10:34:08
○ 2026-06-16 14:06:54
● 2026-06-30 22:32:44
● 2026-08-02 00:39:40
○ 2026-08-03 16:05:22
○ 2026-08-07 12:43:36
● 2026-08-10 13:21:32
○ 2026-08-12 20:05:46
● 2026-08-12 21:49:54
○ 2026-08-12 23:59:46
● 2026-08-13 03:25:52
○ 2026-08-13 04:05:40
● 2026-08-13 07:16:32
○ 2026-08-13 11:53:18
● 2026-08-13 13:28:30
○ 2026-08-13 16:18:50
● 2026-08-13 18:37:12
○ 2026-08-13 20:07:04
● 2026-08-13 21:02:40
○ 2026-08-14 00:06:08
● 2026-08-14 03:42:12
○ 2026-08-14 06:30:36
● 2026-08-14 09:06:34
○ 2026-08-14 16:06:40
● 2026-08-14 17:59:28
○ 2026-08-14 20:05:02
● 2026-08-14 20:49:18
○ 2026-08-15 00:05:48
● 2026-08-15 02:24:58
○ 2026-08-15 06:24:34
● 2026-08-15 07:56:24
○ 2026-08-15 18:46:44
● 2026-08-15 19:50:14
○ 2026-08-15 21:21:08
● 2026-08-15 23:27:00
○ 2026-08-16 03:34:50
● 2026-08-16 04:07:22
○ 2026-08-16 04:39:38
● 2026-08-16 05:49:52
○ 2026-08-16 08:04:28
● 2026-08-16 08:36:54
○ 2026-08-16 12:56:08
● 2026-08-16 16:36:22
○ 2026-08-16 22:10:22
● 2026-08-16 23:40:58
○ 2026-08-17 01:38:12
● 2026-08-17 02:20:32
○ 2026-08-17 10:51:06
○ 2026-08-17 10:59:44

○A108.138.103.32026-06-12 → 2026-08-17 · 53 obs

○A108.138.103.572026-06-12 → 2026-08-17 · 53 obs

○A108.138.103.992026-06-12 → 2026-08-17 · 53 obs

○A108.139.134.102026-04-11 → 2026-04-15 · 13 obs

○ 2026-04-11 16:01:36
● 2026-04-11 17:20:00
○ 2026-04-11 20:10:50
○ 2026-04-13 14:28:34
● 2026-04-13 18:39:52
○ 2026-04-14 02:21:34
● 2026-04-14 13:17:56
● 2026-04-14 20:01:12
○ 2026-04-14 20:47:22
○ 2026-04-15 06:35:16
● 2026-04-15 11:28:54
○ 2026-04-15 20:27:58
○ 2026-08-17 10:59:44

○A108.139.134.1202026-04-11 → 2026-04-15 · 13 obs

○A108.139.134.1222026-04-11 → 2026-04-15 · 13 obs

○A108.139.134.782026-04-11 → 2026-04-15 · 13 obs

○A108.158.186.1162026-04-10 → 2026-07-28 · 16 obs

● 2026-04-10 21:37:24
○ 2026-04-11 04:31:12
○ 2026-04-27 17:09:54
● 2026-04-28 00:39:54
○ 2026-04-28 01:22:58
○ 2026-06-02 00:40:06
● 2026-07-01 21:39:10
○ 2026-07-03 04:06:36
● 2026-07-13 20:42:10
○ 2026-07-14 13:08:42
● 2026-07-23 05:22:28
● 2026-07-27 19:01:40
○ 2026-07-27 23:45:58
● 2026-07-28 01:03:14
○ 2026-07-28 02:06:20
○ 2026-08-17 10:59:44

○A108.158.186.22026-04-10 → 2026-07-28 · 16 obs

○A108.158.186.342026-04-10 → 2026-07-28 · 16 obs

○A108.158.186.992026-04-10 → 2026-07-28 · 16 obs

○A13.226.144.122026-04-11 → 2026-04-22 · 18 obs

○ 2026-04-11 17:20:00
● 2026-04-11 20:10:50
○ 2026-04-12 03:39:10
○ 2026-04-12 04:55:32
● 2026-04-12 08:49:44
○ 2026-04-12 12:48:02
○ 2026-04-13 18:39:52
● 2026-04-14 02:21:34
○ 2026-04-14 13:17:56
○ 2026-04-17 09:12:20
● 2026-04-17 22:20:30
● 2026-04-21 00:36:50
○ 2026-04-22 07:25:36
● 2026-04-22 18:16:12
○ 2026-04-22 22:09:38
● 2026-04-22 23:01:12
○ 2026-04-23 05:05:02
○ 2026-08-17 10:59:44

○A13.226.144.432026-04-11 → 2026-04-22 · 18 obs

○A13.226.144.62026-04-11 → 2026-04-22 · 18 obs

○A13.226.144.612026-04-11 → 2026-04-22 · 18 obs

○A13.227.107.302026-04-12 → 2026-04-29 · 17 obs

○ 2026-04-11 20:10:50
● 2026-04-12 03:39:10
● 2026-04-12 04:55:32
○ 2026-04-12 08:49:44
● 2026-04-12 12:48:02
● 2026-04-13 00:13:54
○ 2026-04-13 08:13:24
○ 2026-04-15 11:28:54
● 2026-04-16 00:15:48
● 2026-04-17 09:12:20
○ 2026-04-17 22:20:30
○ 2026-04-28 01:22:58
● 2026-04-29 07:57:30
○ 2026-04-29 08:58:26
● 2026-04-29 11:46:36
○ 2026-04-29 13:05:08
○ 2026-08-17 10:59:44

○A13.227.107.462026-04-12 → 2026-04-29 · 17 obs

○A13.227.107.502026-04-12 → 2026-04-29 · 17 obs

○A13.227.107.582026-04-12 → 2026-04-29 · 17 obs

○A13.227.110.22026-04-30 → 2026-06-08 · 18 obs

○ 2026-04-29 13:05:08
● 2026-04-30 00:40:54
● 2026-04-30 01:28:22
○ 2026-04-30 02:41:24
○ 2026-05-03 02:46:10
● 2026-05-04 03:49:18
○ 2026-05-04 07:30:16
○ 2026-05-11 05:44:08
● 2026-05-12 05:46:32
○ 2026-05-12 06:29:50
○ 2026-05-31 03:35:34
● 2026-05-31 14:05:22
● 2026-06-01 10:54:28
○ 2026-06-01 14:30:54
○ 2026-06-08 09:57:24
● 2026-06-08 17:01:00
○ 2026-06-10 01:21:48
○ 2026-08-17 10:59:44

○A13.227.110.272026-04-30 → 2026-06-08 · 18 obs

○A13.227.110.432026-04-30 → 2026-06-08 · 18 obs

○A13.227.110.772026-04-30 → 2026-06-08 · 18 obs

○A13.33.109.1172026-04-22 → 2026-08-02 · 17 obs

○ 2026-04-21 00:36:50
● 2026-04-22 07:25:36
● 2026-04-22 15:19:00
○ 2026-04-22 18:16:12
● 2026-04-22 22:09:38
○ 2026-04-22 23:01:12
○ 2026-05-09 19:32:20
● 2026-05-10 10:26:20
○ 2026-05-10 15:28:14
● 2026-05-11 02:20:34
○ 2026-05-11 05:44:08
○ 2026-05-19 22:45:20
● 2026-05-20 00:02:02
○ 2026-05-20 00:44:34
● 2026-08-02 20:21:26
○ 2026-08-02 21:10:24
○ 2026-08-17 10:59:44

○A13.33.109.442026-04-22 → 2026-08-02 · 17 obs

○A13.33.109.942026-04-22 → 2026-08-02 · 17 obs

○A13.33.109.972026-04-22 → 2026-08-02 · 17 obs

○A13.33.131.1272026-07-23 → 2026-07-25 · 6 obs

○ 2026-07-23 05:22:28
● 2026-07-23 09:00:42
○ 2026-07-23 10:21:12
● 2026-07-25 09:29:38
○ 2026-07-25 14:59:12
○ 2026-08-17 10:59:44

○A13.33.131.272026-07-23 → 2026-07-25 · 6 obs

○ 2026-07-23 05:22:28
● 2026-07-23 09:00:42
○ 2026-07-23 10:21:12
● 2026-07-25 09:29:38
○ 2026-07-25 14:59:12
○ 2026-08-17 10:59:44

○A13.33.131.382026-07-23 → 2026-07-25 · 6 obs

○ 2026-07-23 05:22:28
● 2026-07-23 09:00:42
○ 2026-07-23 10:21:12
● 2026-07-25 09:29:38
○ 2026-07-25 14:59:12
○ 2026-08-17 10:59:44

○A13.33.131.772026-07-23 → 2026-07-25 · 6 obs

○ 2026-07-23 05:22:28
● 2026-07-23 09:00:42
○ 2026-07-23 10:21:12
● 2026-07-25 09:29:38
○ 2026-07-25 14:59:12
○ 2026-08-17 10:59:44

○A13.33.235.1262026-07-14 → 2026-08-14 · 16 obs

○ 2026-07-13 20:42:10
● 2026-07-14 06:41:46
○ 2026-07-14 08:08:40
● 2026-07-15 06:59:00
○ 2026-07-15 08:06:10
● 2026-08-07 12:43:36
○ 2026-08-07 14:37:46
● 2026-08-11 11:23:44
○ 2026-08-11 16:43:04
● 2026-08-11 19:20:26
○ 2026-08-11 19:50:58
● 2026-08-13 16:18:50
○ 2026-08-13 18:37:12
● 2026-08-14 16:06:40
○ 2026-08-14 17:59:28
○ 2026-08-17 10:59:44

○A13.33.235.662026-07-14 → 2026-08-14 · 16 obs

○A13.33.235.752026-07-14 → 2026-08-14 · 16 obs

○A13.33.235.882026-07-14 → 2026-08-14 · 16 obs

○A13.35.107.302026-07-13 → 2026-08-02 · 17 obs

○ 2026-07-13 04:24:44
● 2026-07-13 13:41:48
○ 2026-07-13 16:10:56
● 2026-07-14 13:08:42
○ 2026-07-14 16:14:46
● 2026-07-15 12:40:52
○ 2026-07-17 12:05:02
○ 2026-07-18 20:28:26
● 2026-07-20 19:22:08
● 2026-07-24 02:31:10
○ 2026-07-25 09:29:38
○ 2026-07-30 17:12:22
● 2026-08-01 20:18:08
○ 2026-08-01 21:06:52
● 2026-08-02 08:18:46
○ 2026-08-02 09:47:54
○ 2026-08-17 10:59:44

○A13.35.107.492026-07-13 → 2026-08-02 · 17 obs

○A13.35.107.542026-07-13 → 2026-08-02 · 17 obs

○A13.35.107.662026-07-13 → 2026-08-02 · 17 obs

○A18.154.110.1102026-05-19 → 2026-07-02 · 16 obs

○ 2026-05-17 22:44:44
● 2026-05-19 11:41:38
● 2026-05-19 13:52:50
○ 2026-05-19 15:14:48
● 2026-05-19 16:08:24
● 2026-05-31 03:35:34
○ 2026-05-31 14:05:22
● 2026-06-01 19:21:52
● 2026-06-07 08:44:12
○ 2026-06-08 09:57:24
● 2026-06-30 05:55:52
● 2026-07-02 15:34:06
○ 2026-07-02 17:07:58
● 2026-07-02 20:57:36
○ 2026-07-02 22:31:50
○ 2026-08-17 10:59:44

○A18.154.110.32026-05-19 → 2026-07-02 · 16 obs

○A18.154.110.492026-05-19 → 2026-07-02 · 16 obs

○A18.154.110.522026-05-19 → 2026-07-02 · 16 obs

○A18.160.18.1022026-05-23 → 2026-08-16 · 30 obs

○ 2026-05-21 22:11:24
● 2026-05-23 04:10:20
○ 2026-05-23 04:56:32
○ 2026-05-23 15:42:26
● 2026-05-25 00:03:18
○ 2026-05-26 11:47:06
○ 2026-06-16 20:16:10
● 2026-06-19 06:09:00
● 2026-06-26 19:46:46
○ 2026-06-30 13:29:20
● 2026-07-07 10:14:06
○ 2026-07-12 03:32:32
● 2026-08-03 16:05:22
● 2026-08-12 02:58:36
○ 2026-08-12 04:29:10
● 2026-08-12 23:59:46
○ 2026-08-13 00:41:30
● 2026-08-13 11:53:18
○ 2026-08-13 13:28:30
● 2026-08-14 06:30:36
○ 2026-08-14 09:06:34
● 2026-08-15 06:24:34
○ 2026-08-15 07:56:24
● 2026-08-15 18:46:44
○ 2026-08-15 19:50:14
● 2026-08-15 21:21:08
○ 2026-08-15 23:27:00
● 2026-08-16 22:10:22
○ 2026-08-16 23:40:58
○ 2026-08-17 10:59:44

○A18.160.18.112026-05-23 → 2026-08-16 · 30 obs

○A18.160.18.1192026-05-23 → 2026-08-16 · 30 obs

○A18.160.18.1262026-05-23 → 2026-08-16 · 30 obs

○A18.165.122.1182026-07-11 → 2026-08-13 · 18 obs

○ 2026-07-11 07:57:18
● 2026-07-11 08:36:58
○ 2026-07-11 09:35:56
● 2026-07-11 13:13:24
○ 2026-07-11 13:56:54
● 2026-07-12 09:28:32
● 2026-07-16 12:06:08
○ 2026-07-17 02:27:18
● 2026-07-18 15:49:54
○ 2026-07-19 10:00:48
○ 2026-07-20 17:26:36
● 2026-08-09 00:31:34
○ 2026-08-09 02:37:52
● 2026-08-13 00:41:30
○ 2026-08-13 03:25:52
● 2026-08-13 04:05:40
○ 2026-08-13 07:16:32
○ 2026-08-17 10:59:44

○A18.165.122.562026-07-11 → 2026-08-13 · 18 obs

○A18.165.122.752026-07-11 → 2026-08-13 · 18 obs

○A18.165.122.942026-07-11 → 2026-08-13 · 18 obs

○A18.173.166.1082026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-17 04:07:08
● 2026-06-17 14:24:46
○ 2026-06-17 16:48:42
○ 2026-08-17 10:59:44

○A18.173.166.1222026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-17 04:07:08
● 2026-06-17 14:24:46
○ 2026-06-17 16:48:42
○ 2026-08-17 10:59:44

○A18.173.166.242026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-17 04:07:08
● 2026-06-17 14:24:46
○ 2026-06-17 16:48:42
○ 2026-08-17 10:59:44

○A18.173.166.752026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-17 04:07:08
● 2026-06-17 14:24:46
○ 2026-06-17 16:48:42
○ 2026-08-17 10:59:44

○A18.64.155.1012026-05-21 → 2026-07-30 · 18 obs

○ 2026-05-21 10:06:48
● 2026-05-21 21:31:00
○ 2026-05-21 22:11:24
● 2026-06-19 19:02:42
○ 2026-06-19 20:19:56
○ 2026-06-20 17:28:58
● 2026-06-22 16:07:58
● 2026-06-24 07:44:00
○ 2026-06-25 07:25:42
○ 2026-06-27 22:46:04
● 2026-06-29 11:05:02
○ 2026-06-30 05:55:52
● 2026-07-28 14:17:04
● 2026-07-30 09:50:08
○ 2026-07-30 12:13:40
● 2026-07-30 17:12:22
○ 2026-07-30 20:06:10
○ 2026-08-17 10:59:44

○A18.64.155.322026-05-21 → 2026-07-30 · 18 obs

○A18.64.155.352026-05-21 → 2026-07-30 · 18 obs

○A18.64.155.492026-05-21 → 2026-07-30 · 18 obs

○A3.165.113.1062026-07-25 → 2026-07-28 · 14 obs

○ 2026-07-25 14:59:12
● 2026-07-25 18:39:56
○ 2026-07-25 23:35:04
● 2026-07-26 00:06:32
○ 2026-07-26 00:41:02
● 2026-07-28 02:06:20
○ 2026-07-28 04:42:22
● 2026-07-28 10:47:40
○ 2026-07-28 14:17:04
● 2026-07-28 15:09:48
○ 2026-07-28 17:59:52
● 2026-07-28 20:37:42
○ 2026-07-29 00:15:06
○ 2026-08-17 10:59:44

○A3.165.113.142026-07-25 → 2026-07-28 · 14 obs

○A3.165.113.822026-07-25 → 2026-07-28 · 14 obs

○A3.165.113.962026-07-25 → 2026-07-28 · 14 obs

○A3.167.99.172026-05-21 → 2026-08-14 · 19 obs

○ 2026-05-20 00:44:34
● 2026-05-21 09:05:52
○ 2026-05-21 10:06:48
○ 2026-06-13 12:29:30
● 2026-06-13 13:33:20
○ 2026-06-13 15:57:00
● 2026-06-18 13:38:42
○ 2026-06-19 03:15:26
● 2026-06-28 09:38:04
○ 2026-06-28 12:12:48
● 2026-07-02 05:20:50
○ 2026-07-02 06:11:44
● 2026-07-11 07:57:18
○ 2026-07-11 08:36:58
● 2026-07-11 09:35:56
○ 2026-07-11 12:39:16
● 2026-08-14 02:48:36
○ 2026-08-14 03:42:12
○ 2026-08-17 10:59:44

○A3.167.99.192026-05-21 → 2026-08-14 · 19 obs

○A3.167.99.282026-05-21 → 2026-08-14 · 19 obs

○A3.167.99.82026-05-21 → 2026-08-14 · 19 obs

●A3.170.131.1192026-08-17 → 2026-08-17 · 3 obs

○ 2026-08-17 02:20:32
● 2026-08-17 10:51:06
● 2026-08-17 10:59:44

●A3.170.131.132026-08-17 → 2026-08-17 · 3 obs

○ 2026-08-17 02:20:32
● 2026-08-17 10:51:06
● 2026-08-17 10:59:44

●A3.170.131.412026-08-17 → 2026-08-17 · 3 obs

○ 2026-08-17 02:20:32
● 2026-08-17 10:51:06
● 2026-08-17 10:59:44

●A3.170.131.692026-08-17 → 2026-08-17 · 3 obs

○ 2026-08-17 02:20:32
● 2026-08-17 10:51:06
● 2026-08-17 10:59:44

○A3.170.229.1062026-05-30 → 2026-05-30 · 4 obs

○ 2026-05-30 16:09:58
● 2026-05-30 22:01:26
○ 2026-05-30 23:09:22
○ 2026-08-17 10:59:44

○A3.170.229.392026-05-30 → 2026-05-30 · 4 obs

○ 2026-05-30 16:09:58
● 2026-05-30 22:01:26
○ 2026-05-30 23:09:22
○ 2026-08-17 10:59:44

○A3.170.229.582026-05-30 → 2026-05-30 · 4 obs

○ 2026-05-30 16:09:58
● 2026-05-30 22:01:26
○ 2026-05-30 23:09:22
○ 2026-08-17 10:59:44

○A3.170.229.972026-05-30 → 2026-05-30 · 4 obs

○ 2026-05-30 16:09:58
● 2026-05-30 22:01:26
○ 2026-05-30 23:09:22
○ 2026-08-17 10:59:44

○A3.171.38.1062026-06-29 → 2026-06-29 · 4 obs

○ 2026-06-29 03:00:32
● 2026-06-29 08:29:00
○ 2026-06-29 11:05:02
○ 2026-08-17 10:59:44

○A3.171.38.612026-06-29 → 2026-06-29 · 4 obs

○ 2026-06-29 03:00:32
● 2026-06-29 08:29:00
○ 2026-06-29 11:05:02
○ 2026-08-17 10:59:44

○A3.171.38.92026-06-29 → 2026-06-29 · 4 obs

○ 2026-06-29 03:00:32
● 2026-06-29 08:29:00
○ 2026-06-29 11:05:02
○ 2026-08-17 10:59:44

○A3.171.38.972026-06-29 → 2026-06-29 · 4 obs

○ 2026-06-29 03:00:32
● 2026-06-29 08:29:00
○ 2026-06-29 11:05:02
○ 2026-08-17 10:59:44

○A3.174.29.1002026-04-11 → 2026-04-13 · 8 obs

○ 2026-04-10 21:37:24
● 2026-04-11 04:31:12
● 2026-04-11 16:01:36
○ 2026-04-11 17:20:00
○ 2026-04-13 00:13:54
● 2026-04-13 08:13:24
○ 2026-04-13 10:00:20
○ 2026-08-17 10:59:44

○A3.174.29.1062026-04-11 → 2026-04-13 · 8 obs

○ 2026-04-10 21:37:24
● 2026-04-11 04:31:12
● 2026-04-11 16:01:36
○ 2026-04-11 17:20:00
○ 2026-04-13 00:13:54
● 2026-04-13 08:13:24
○ 2026-04-13 10:00:20
○ 2026-08-17 10:59:44

○A3.174.29.142026-04-11 → 2026-04-13 · 8 obs

○ 2026-04-10 21:37:24
● 2026-04-11 04:31:12
● 2026-04-11 16:01:36
○ 2026-04-11 17:20:00
○ 2026-04-13 00:13:54
● 2026-04-13 08:13:24
○ 2026-04-13 10:00:20
○ 2026-08-17 10:59:44

○A3.174.29.882026-04-11 → 2026-04-13 · 8 obs

○ 2026-04-10 21:37:24
● 2026-04-11 04:31:12
● 2026-04-11 16:01:36
○ 2026-04-11 17:20:00
○ 2026-04-13 00:13:54
● 2026-04-13 08:13:24
○ 2026-04-13 10:00:20
○ 2026-08-17 10:59:44

○A52.85.78.1232026-06-17 → 2026-06-21 · 11 obs

○ 2026-06-16 20:16:10
● 2026-06-17 02:49:14
○ 2026-06-17 04:07:08
○ 2026-06-17 16:48:42
● 2026-06-17 22:06:20
○ 2026-06-18 00:03:24
● 2026-06-21 10:30:44
○ 2026-06-21 12:25:18
● 2026-06-21 16:04:06
○ 2026-06-22 00:30:36
○ 2026-08-17 10:59:44

○A52.85.78.1262026-06-17 → 2026-06-21 · 11 obs

○A52.85.78.342026-06-17 → 2026-06-21 · 11 obs

○A52.85.78.722026-06-17 → 2026-06-21 · 11 obs

○A54.192.151.1092026-05-29 → 2026-06-03 · 18 obs

○ 2026-05-26 11:47:06
● 2026-05-29 10:09:24
○ 2026-05-29 11:25:24
○ 2026-05-29 16:48:02
● 2026-05-29 17:27:16
○ 2026-05-29 20:42:02
● 2026-05-29 23:00:16
○ 2026-05-30 00:21:14
○ 2026-05-30 09:27:00
● 2026-05-30 15:05:36
○ 2026-05-30 16:09:58
○ 2026-06-01 10:54:28
● 2026-06-01 14:30:54
○ 2026-06-01 15:56:18
○ 2026-06-03 10:35:58
● 2026-06-03 12:45:42
○ 2026-06-03 13:23:22
○ 2026-08-17 10:59:44

○A54.192.151.1262026-05-29 → 2026-06-03 · 18 obs

○A54.192.151.762026-05-29 → 2026-06-03 · 18 obs

○A54.192.151.952026-05-29 → 2026-06-03 · 18 obs

○A54.230.79.1112026-06-18 → 2026-07-28 · 14 obs

○ 2026-06-18 00:03:24
● 2026-06-18 11:52:32
○ 2026-06-18 13:38:42
● 2026-06-27 08:05:42
○ 2026-06-27 14:10:44
● 2026-06-28 08:06:00
○ 2026-06-28 09:38:04
● 2026-06-28 12:12:48
○ 2026-06-28 14:16:26
● 2026-06-28 21:50:08
○ 2026-06-29 03:00:32
● 2026-07-28 07:41:30
○ 2026-07-28 08:20:06
○ 2026-08-17 10:59:44

○A54.230.79.222026-06-18 → 2026-07-28 · 14 obs

○A54.230.79.352026-06-18 → 2026-07-28 · 14 obs

○A54.230.79.822026-06-18 → 2026-07-28 · 14 obs

○A99.84.252.232026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 00:41:02
● 2026-07-27 15:58:26
○ 2026-07-27 19:01:40
○ 2026-08-17 10:59:44

○A99.84.252.522026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 00:41:02
● 2026-07-27 15:58:26
○ 2026-07-27 19:01:40
○ 2026-08-17 10:59:44

○A99.84.252.822026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 00:41:02
● 2026-07-27 15:58:26
○ 2026-07-27 19:01:40
○ 2026-08-17 10:59:44

○A99.84.252.962026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 00:41:02
● 2026-07-27 15:58:26
○ 2026-07-27 19:01:40
○ 2026-08-17 10:59:44

○A99.84.41.1012026-07-03 → 2026-08-17 · 36 obs

○ 2026-07-02 22:31:50
● 2026-07-03 00:05:18
○ 2026-07-03 00:47:32
● 2026-07-03 04:06:36
○ 2026-07-03 07:50:46
● 2026-07-07 16:23:12
● 2026-07-12 04:07:18
○ 2026-07-13 04:24:44
● 2026-07-17 12:05:02
● 2026-07-22 04:06:22
○ 2026-07-25 18:39:56
○ 2026-08-06 13:35:04
● 2026-08-08 17:59:36
● 2026-08-10 23:10:56
○ 2026-08-11 02:49:10
● 2026-08-12 20:05:46
○ 2026-08-12 21:49:54
● 2026-08-13 20:07:04
○ 2026-08-13 21:02:40
● 2026-08-14 00:06:08
○ 2026-08-14 02:48:36
● 2026-08-14 20:05:02
○ 2026-08-14 20:49:18
● 2026-08-15 00:05:48
○ 2026-08-15 02:24:58
● 2026-08-16 03:34:50
○ 2026-08-16 04:07:22
● 2026-08-16 04:39:38
○ 2026-08-16 05:49:52
● 2026-08-16 08:04:28
○ 2026-08-16 08:36:54
● 2026-08-16 12:56:08
○ 2026-08-16 16:36:22
● 2026-08-17 01:38:12
○ 2026-08-17 02:20:32
○ 2026-08-17 10:59:44

○A99.84.41.152026-07-03 → 2026-08-17 · 36 obs

○A99.84.41.362026-07-03 → 2026-08-17 · 36 obs

○A99.84.41.722026-07-03 → 2026-08-17 · 36 obs

○A99.86.12.1292026-04-23 → 2026-06-30 · 18 obs

○ 2026-04-22 23:01:12
● 2026-04-23 05:05:02
● 2026-04-23 20:41:14
○ 2026-04-24 00:20:04
● 2026-04-24 02:15:00
● 2026-05-17 22:44:44
○ 2026-05-19 11:41:38
○ 2026-06-08 17:01:00
● 2026-06-11 09:48:20
○ 2026-06-12 19:07:40
● 2026-06-15 18:58:34
● 2026-06-25 11:31:00
○ 2026-06-26 18:43:52
● 2026-06-30 13:29:20
○ 2026-06-30 14:58:00
● 2026-06-30 17:06:58
○ 2026-06-30 22:32:44
○ 2026-08-17 10:59:44

○A99.86.12.22026-04-23 → 2026-06-30 · 18 obs

○A99.86.12.202026-04-23 → 2026-06-30 · 18 obs

○A99.86.12.882026-04-23 → 2026-06-30 · 18 obs

○CNAMEcluster223.instructure.com2020-04-01 → 2020-04-01 · 3 obs

● 2020-04-01 19:12:22
○ 2026-04-10 21:37:24
○ 2026-08-17 10:59:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
instructure.com	ns-2.awsdns-00.com, ns-996.awsdns-60.net, ns-1799.awsdns-32.co.uk, ns-1354.awsdns-41.org	2 records

✅ Authoritative Response

Server:205.251.199.7

NS records: ns-2.awsdns-00.com, ns-996.awsdns-60.net, ns-1799.awsdns-32.co.uk, ns-1354.awsdns-41.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for instructure.com (unsigned zone)

⏱️ Timing

Total: 504ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.170.131.41, 3.170.131.13...`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-2.awsdns-00.com, ns-2.awsdns-00.com)

Analysis

IP Addresses

si.instructure.com points to the four IP addresses 3.170.131.13, 3.170.131.41, 3.170.131.69 and 3.170.131.119.

adu.instructure.com, wsc-vanity.instructure.com, ucb.instructure.com and two other host names share IP numbers with si.instructure.com.